[INFO] fetching crate matrix_lib 0.7.1...
[INFO] testing matrix_lib-0.7.1 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate matrix_lib 0.7.1 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate matrix_lib 0.7.1
[INFO] finished tweaking crates.io crate matrix_lib 0.7.1
[INFO] tweaked toml for crates.io crate matrix_lib 0.7.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate matrix_lib 0.7.1 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 8 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f500676a3823b340fadba643f1a37471dbbfa07f049eaa35b8c4543c6bd5eb36
[INFO] running `Command { std: "docker" "start" "-a" "f500676a3823b340fadba643f1a37471dbbfa07f049eaa35b8c4543c6bd5eb36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f500676a3823b340fadba643f1a37471dbbfa07f049eaa35b8c4543c6bd5eb36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f500676a3823b340fadba643f1a37471dbbfa07f049eaa35b8c4543c6bd5eb36", kill_on_drop: false }`
[INFO] [stdout] f500676a3823b340fadba643f1a37471dbbfa07f049eaa35b8c4543c6bd5eb36
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1139078cad7285450d08ddbec71bf806b74ed0df85b0863ccf0c2a976ec04137
[INFO] running `Command { std: "docker" "start" "-a" "1139078cad7285450d08ddbec71bf806b74ed0df85b0863ccf0c2a976ec04137", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling num-complex v0.4.6
[INFO] [stderr]    Compiling num-bigint v0.4.6
[INFO] [stderr]    Compiling num-iter v0.1.45
[INFO] [stderr]    Compiling num-rational v0.4.2
[INFO] [stderr]    Compiling num v0.4.3
[INFO] [stderr]    Compiling matrix_lib v0.7.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unexpected `cfg` condition value: `parallel`
[INFO] [stdout]   --> src/lib.rs:19:7
[INFO] [stdout]    |
[INFO] [stdout] 19 | #[cfg(target_feature = "parallel")]
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected values for `target_feature` are: `10e60`, `2e3`, `32s`, `3e3r1`, `3e3r2`, `3e3r3`, `3e7`, `7e10`, `a`, `aclass`, `adx`, `aes`, `altivec`, `alu32`, `amx-avx512`, `amx-bf16`, `amx-complex`, `amx-fp16`, `amx-fp8`, `amx-int8`, `amx-movrs`, `amx-tf32`, `amx-tile`, `amx-transpose`, `apxf`, `atomics`, `avx`, `avx10.1`, `avx10.2`, `avx2`, `avx512bf16`, `avx512bitalg`, `avx512bw`, `avx512cd`, and `avx512dq` and 429 more
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless assignment of field of type `usize` to itself
[INFO] [stdout]   --> src/functions.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |         temp_sizes.x = temp_sizes.x;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.39s
[INFO] running `Command { std: "docker" "inspect" "1139078cad7285450d08ddbec71bf806b74ed0df85b0863ccf0c2a976ec04137", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1139078cad7285450d08ddbec71bf806b74ed0df85b0863ccf0c2a976ec04137", kill_on_drop: false }`
[INFO] [stdout] 1139078cad7285450d08ddbec71bf806b74ed0df85b0863ccf0c2a976ec04137
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6d0d6bc733beda1b8bcadba27d055c086e802445257f65d1a3e63c0c681af023
[INFO] running `Command { std: "docker" "start" "-a" "6d0d6bc733beda1b8bcadba27d055c086e802445257f65d1a3e63c0c681af023", kill_on_drop: false }`
[INFO] [stdout] warning: unexpected `cfg` condition value: `parallel`
[INFO] [stdout]   --> src/lib.rs:19:7
[INFO] [stdout]    |
[INFO] [stdout] 19 | #[cfg(target_feature = "parallel")]
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected values for `target_feature` are: `10e60`, `2e3`, `32s`, `3e3r1`, `3e3r2`, `3e3r3`, `3e7`, `7e10`, `a`, `aclass`, `adx`, `aes`, `altivec`, `alu32`, `amx-avx512`, `amx-bf16`, `amx-complex`, `amx-fp16`, `amx-fp8`, `amx-int8`, `amx-movrs`, `amx-tf32`, `amx-tile`, `amx-transpose`, `apxf`, `atomics`, `avx`, `avx10.1`, `avx10.2`, `avx2`, `avx512bf16`, `avx512bitalg`, `avx512bw`, `avx512cd`, and `avx512dq` and 429 more
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless assignment of field of type `usize` to itself
[INFO] [stdout]   --> src/functions.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |         temp_sizes.x = temp_sizes.x;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling matrix_lib v0.7.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unexpected `cfg` condition value: `parallel`
[INFO] [stdout]   --> src/lib.rs:19:7
[INFO] [stdout]    |
[INFO] [stdout] 19 | #[cfg(target_feature = "parallel")]
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected values for `target_feature` are: `10e60`, `2e3`, `32s`, `3e3r1`, `3e3r2`, `3e3r3`, `3e7`, `7e10`, `a`, `aclass`, `adx`, `aes`, `altivec`, `alu32`, `amx-avx512`, `amx-bf16`, `amx-complex`, `amx-fp16`, `amx-fp8`, `amx-int8`, `amx-movrs`, `amx-tf32`, `amx-tile`, `amx-transpose`, `apxf`, `atomics`, `avx`, `avx10.1`, `avx10.2`, `avx2`, `avx512bf16`, `avx512bitalg`, `avx512bw`, `avx512cd`, and `avx512dq` and 429 more
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless assignment of field of type `usize` to itself
[INFO] [stdout]   --> src/functions.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |         temp_sizes.x = temp_sizes.x;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.88s
[INFO] running `Command { std: "docker" "inspect" "6d0d6bc733beda1b8bcadba27d055c086e802445257f65d1a3e63c0c681af023", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d0d6bc733beda1b8bcadba27d055c086e802445257f65d1a3e63c0c681af023", kill_on_drop: false }`
[INFO] [stdout] 6d0d6bc733beda1b8bcadba27d055c086e802445257f65d1a3e63c0c681af023
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 318ac4125bc98310697ecf661b6e048a2b82bbff145d076117c88d6ac8f7b805
[INFO] running `Command { std: "docker" "start" "-a" "318ac4125bc98310697ecf661b6e048a2b82bbff145d076117c88d6ac8f7b805", kill_on_drop: false }`
[INFO] [stderr] warning: unexpected `cfg` condition value: `parallel`
[INFO] [stderr]   --> src/lib.rs:19:7
[INFO] [stderr]    |
[INFO] [stderr] 19 | #[cfg(target_feature = "parallel")]
[INFO] [stderr]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: expected values for `target_feature` are: `10e60`, `2e3`, `32s`, `3e3r1`, `3e3r2`, `3e3r3`, `3e7`, `7e10`, `a`, `aclass`, `adx`, `aes`, `altivec`, `alu32`, `amx-avx512`, `amx-bf16`, `amx-complex`, `amx-fp16`, `amx-fp8`, `amx-int8`, `amx-movrs`, `amx-tf32`, `amx-tile`, `amx-transpose`, `apxf`, `atomics`, `avx`, `avx10.1`, `avx10.2`, `avx2`, `avx512bf16`, `avx512bitalg`, `avx512bw`, `avx512cd`, and `avx512dq` and 429 more
[INFO] [stderr]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: useless assignment of field of type `usize` to itself
[INFO] [stderr]   --> src/functions.rs:18:9
[INFO] [stderr]    |
[INFO] [stderr] 18 |         temp_sizes.x = temp_sizes.x;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `matrix_lib` (lib) generated 2 warnings
[INFO] [stderr] warning: `matrix_lib` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/matrix_lib-9d4815bca66113a0)
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test tests::classic_tests::from_vec ... ok
[INFO] [stdout] test tests::classic_tests::gaussian_elimination_with_division_by_zero ... ok
[INFO] [stdout] test tests::classic_tests::gaussian_elimination_with_row_swap ... ok
[INFO] [stdout] test tests::classic_tests::gaussian_elimination ... ok
[INFO] [stdout] test tests::classic_tests::determinant_with_row_swap ... ok
[INFO] [stdout] test tests::classic_tests::mul ... ok
[INFO] [stdout] test tests::classic_tests::scalar_mul ... ok
[INFO] [stdout] test tests::classic_tests::sum_fail ... ok
[INFO] [stdout] test tests::classic_tests::inverse ... ok
[INFO] [stdout] test tests::classic_tests::sum ... ok
[INFO] [stdout] test tests::classic_tests::transpose ... ok
[INFO] [stdout] test tests::classic_tests::vectorize ... ok
[INFO] [stdout] test tests::classic_tests::inverse_2 ... ok
[INFO] [stdout] test tests::classic_tests::determinant_cmp_gaussian_elimination_determinant ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 14 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests matrix_lib
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test src/lib.rs - Matrix<T>::sum (line 108) ... FAILED
[INFO] [stdout] test src/lib.rs - Matrix<T>::sum (line 117) ... FAILED
[INFO] [stdout] test src/lib.rs - Matrix<T>::from_vectorized (line 260) ... ok
[INFO] [stdout] test src/lib.rs - (line 6) ... ok
[INFO] [stdout] test src/lib.rs - Matrix<T>::get_size (line 343) ... FAILED
[INFO] [stdout] test src/lib.rs - matrix (line 375) ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - Matrix<T>::sum (line 108) stdout ----
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/lib.rs:113:25
[INFO] [stdout]     |
[INFO] [stdout]   8 | assert!(matches!(m1.sum(m2), Err(String)));
[INFO] [stdout]     |                     --- ^^ expected `&Matrix<{integer}>`, found `Matrix<{integer}>`
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     arguments to this method are incorrect
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected reference `&Matrix<{integer}>`
[INFO] [stdout]                   found struct `Matrix<{integer}>`
[INFO] [stdout] note: method defined here
[INFO] [stdout]    --> /opt/rustwide/workdir/src/lib.rs:124:12
[INFO] [stdout]     |
[INFO] [stdout] 124 |     pub fn sum(&self, other: &Matrix<T>) -> Result<Self, String> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] help: consider borrowing here
[INFO] [stdout]     |
[INFO] [stdout]   8 | assert!(matches!(m1.sum(&m2), Err(String)));
[INFO] [stdout]     |                         +
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - Matrix<T>::sum (line 117) stdout ----
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/lib.rs:122:48
[INFO] [stdout]     |
[INFO] [stdout]   8 | assert_eq!(matrix![[2,4,6], [8,10,12]], m1.sum(m2).unwrap());
[INFO] [stdout]     |                                            --- ^^ expected `&Matrix<{integer}>`, found `Matrix<{integer}>`
[INFO] [stdout]     |                                            |
[INFO] [stdout]     |                                            arguments to this method are incorrect
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected reference `&Matrix<{integer}>`
[INFO] [stdout]                   found struct `Matrix<{integer}>`
[INFO] [stdout] note: method defined here
[INFO] [stdout]    --> /opt/rustwide/workdir/src/lib.rs:124:12
[INFO] [stdout]     |
[INFO] [stdout] 124 |     pub fn sum(&self, other: &Matrix<T>) -> Result<Self, String> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] help: consider borrowing here
[INFO] [stdout]     |
[INFO] [stdout]   8 | assert_eq!(matrix![[2,4,6], [8,10,12]], m1.sum(&m2).unwrap());
[INFO] [stdout]     |                                                +
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - Matrix<T>::get_size (line 343) stdout ----
[INFO] [stdout] Test executable failed (exit status: 101).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] 
[INFO] [stdout] thread 'main' (111) panicked at src/lib.rs:8:1:
[INFO] [stdout] assertion `left == right` failed
[INFO] [stdout]   left: Size { x: 4, y: 3 }
[INFO] [stdout]  right: Size { x: 3, y: 4 }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x618bd553f0d2 - std::backtrace_rs::backtrace::libunwind::trace::hcab59e1e990fdc24
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x618bd553f0d2 - std::backtrace_rs::backtrace::trace_unsynchronized::he24cc57f3d2f47b7
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x618bd553f0d2 - std::sys::backtrace::_print_fmt::hf8d65ede198eeb54
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x618bd553f0d2 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h67edf0e4d33c343c
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x618bd554df4f - core::fmt::rt::Argument::fmt::hef94184842aeafdd
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/fmt/rt.rs:173:76
[INFO] [stdout]    5:     0x618bd554df4f - core::fmt::write::hcf0c66b48a8fa606
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/fmt/mod.rs:1468:25
[INFO] [stdout]    6:     0x618bd551d981 - std::io::default_write_fmt::h1ecb8c7cfa7da481
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x618bd551d981 - std::io::Write::write_fmt::h051fe4a9e4fdbf48
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/io/mod.rs:1954:13
[INFO] [stdout]    8:     0x618bd5522a12 - std::sys::backtrace::BacktraceLock::print::h07e5435aa717b414
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    9:     0x618bd552426c - std::panicking::default_hook::{{closure}}::h91001850288db5f7
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:301:27
[INFO] [stdout]   10:     0x618bd55240c6 - std::panicking::default_hook::h2346dbb704ef5512
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:328:9
[INFO] [stdout]   11:     0x618bd55248f5 - std::panicking::panic_with_hook::hd2b063a6090d23a4
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:834:13
[INFO] [stdout]   12:     0x618bd552478a - std::panicking::panic_handler::{{closure}}::he666d95f139a333e
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:707:13
[INFO] [stdout]   13:     0x618bd5522b49 - std::sys::backtrace::__rust_end_short_backtrace::h631ad224854ebee5
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/sys/backtrace.rs:174:18
[INFO] [stdout]   14:     0x618bd55124ad - __rustc[1d67440d6e82e4f]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:698:5
[INFO] [stdout]   15:     0x618bd5550ff0 - core::panicking::panic_fmt::h420ddb7fd73daf53
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/panicking.rs:75:14
[INFO] [stdout]   16:     0x618bd5550df3 - core::panicking::assert_failed_inner::h448e1d534f4c3d4b
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/panicking.rs:439:17
[INFO] [stdout]   17:     0x618bd5510d70 - core::panicking::assert_failed::h55d99b0866e84c08
[INFO] [stdout]   18:     0x618bd5511c3f - rust_out::main::_doctest_main_src_lib_rs_343_0::h0ee15008dfc5abac
[INFO] [stdout]   19:     0x618bd55117a6 - rust_out::main::h909c389308a13d94
[INFO] [stdout]   20:     0x618bd55101d3 - core::ops::function::FnOnce::call_once::he80aaf16098e337a
[INFO] [stdout]   21:     0x618bd5510036 - std::sys::backtrace::__rust_begin_short_backtrace::hd4f5856814720a68
[INFO] [stdout]   22:     0x618bd5510019 - std::rt::lang_start::{{closure}}::hdd522a24cafb4b4b
[INFO] [stdout]   23:     0x618bd551ea90 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h4967fb77e0dfb65c
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/ops/function.rs:287:21
[INFO] [stdout]   24:     0x618bd551ea90 - std::panicking::catch_unwind::do_call::hf7e87675c3e14c23
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:590:40
[INFO] [stdout]   25:     0x618bd551ea90 - std::panicking::catch_unwind::h26f0e342004b5114
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:553:19
[INFO] [stdout]   26:     0x618bd551ea90 - std::panic::catch_unwind::h9ee33ca17775d897
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panic.rs:359:14
[INFO] [stdout]   27:     0x618bd551ea90 - std::rt::lang_start_internal::{{closure}}::h243ba3495fa13cf8
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/rt.rs:175:24
[INFO] [stdout]   28:     0x618bd551ea90 - std::panicking::catch_unwind::do_call::h819db0a7788e7259
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:590:40
[INFO] [stdout]   29:     0x618bd551ea90 - std::panicking::catch_unwind::h23e08fb4a7b9f405
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:553:19
[INFO] [stdout]   30:     0x618bd551ea90 - std::panic::catch_unwind::h7ca3d9eabb6135ff
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panic.rs:359:14
[INFO] [stdout]   31:     0x618bd551ea90 - std::rt::lang_start_internal::h06ad7395f4fda8d7
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/rt.rs:171:5
[INFO] [stdout]   32:     0x618bd5510001 - std::rt::lang_start::h5d51bffdfd88737a
[INFO] [stdout]   33:     0x618bd5511ec5 - main
[INFO] [stdout]   34:     0x7cf0828141ca - <unknown>
[INFO] [stdout]   35:     0x7cf08281428b - __libc_start_main
[INFO] [stdout]   36:     0x618bd550ed55 - _start
[INFO] [stdout]   37:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - Matrix<T>::get_size (line 343)
[INFO] [stdout]     src/lib.rs - Matrix<T>::sum (line 108)
[INFO] [stdout]     src/lib.rs - Matrix<T>::sum (line 117)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 3 passed; 3 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.89s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "318ac4125bc98310697ecf661b6e048a2b82bbff145d076117c88d6ac8f7b805", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "318ac4125bc98310697ecf661b6e048a2b82bbff145d076117c88d6ac8f7b805", kill_on_drop: false }`
[INFO] [stdout] 318ac4125bc98310697ecf661b6e048a2b82bbff145d076117c88d6ac8f7b805
